During their first unit in the school’s Discovery Lab, John Lewis Childs School fifth graders are learning about bridges. Working in groups, the students create truss bridges out of connector strips.

Like a spider web that flexes to compensate for a broken strand 1, 2, steel truss bridges, which are built from a framework of connected elements, can sometimes withstand the failure of a load-bearing ...

Contractor Kraemer North American broke ground in October 2023 on a steel through truss bridge that will cross the Mississippi River. It’s the rare bridge construction project that doesn’t have ...